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How to Research Marriage Records in the Western States
This multi-state marriage index covers about 146,000 records from selected counties in Arizona, California, Idaho, and Nevada between 1850 and 1951. It’s a valuable tool for tracing family connections as people moved westward during a time of major expansion in the United States.
Because the index spans four states, coverage varies. Not every county or year is represented, so treat this index as a starting point. When you find a name, use the information—such as the location and date—to search for original marriage certificates or local newspaper announcements.
Western states experienced population growth from mining booms, railroads, and land opportunities. Marriage records from this era may reveal where your ancestors settled, who they married, and clues about their broader family networks.
Start with this index to build a path into your western U.S. ancestry, and use it to lead you to more detailed local sources.